Description
The A.J. Antunes 8224210005 is a genuine OEM air differential pressure switch used in HVAC and industrial systems to monitor changes in air pressure. It is factory set with a differential range from 0.05 to 1.0 inches of water column (W.C.), making it ideal for low pressure airflow detection and control. This switch uses a snap action SPDT contact to actuate control circuits when the pressure differential crosses the threshold, helping automate fan control, monitor airflow, check filter status, or manage safety interlocks in commercial and HVAC applications. Its compact form factor and reliable performance make it appropriate for use in air handling units, variable air volume systems, and other environments where precise low pressure sensing is required.
Key Features
- Differential pressure sensing range: 0.05 – 1″ W.C. for airflow or pressure variation detection.
- SPDT electrical switch output for control circuit integration.
- 1/4″ male NPT and 1/8″ female NPT pressure ports (varies by configuration).
- Compact, robust design suitable for HVAC, industrial, and mechanical systems
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